From: Sm-Nd isotopic analysis of mixed standard solutions by multi-collector inductively coupled plasma mass spectrometry: evaluations on isobaric interference correction of Nd isotopic composition and external calibration of Sm/Nd ratio
Gravimetric Sm/Nd
143Nd/ 144Nd
2σ S.E.
145Nd/ 144Nd
n
100 μg/L Nd
0.2041
0.512195
0.000011
0.348415
0.000005
140
200 μg/L Nd
0.2022
0.000022
0.348419
0.000010
20
50 μg/L Nd
0.2036
0.512208
0.000038
0.348420
0.000031